From 1cd64ef5c1becb1c70c432bdcae98fdb686a8173 Mon Sep 17 00:00:00 2001 From: Colin Cross Date: Sat, 12 Feb 2011 13:21:32 -0800 Subject: [PATCH] Revert "mmc: subtract boot sectors from disk size for eMMC 4.3+ devices" This reverts commit f0b0e4bec1e89014f3dcef4da8bcf95428cc771c. The reverted commit incorrectly calculates the size of eMMC devices in some (all?) cases. This revert may cause problems in cases where the bootloader was bug-compatible and puts a GPT partition at the incorrect end of the eMMC device. Change-Id: Ib006acf9e517b3b8f7570220c28e19c91e7b5f25 Signed-off-by: Colin Cross --- drivers/mmc/core/mmc.c | 7 +------ include/linux/mmc/mmc.h | 1 - 2 files changed, 1 insertion(+), 7 deletions(-) diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index 45055c46d954..6909a54c39be 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -253,13 +253,8 @@ static int mmc_read_ext_csd(struct mmc_card *card) ext_csd[EXT_CSD_SEC_CNT + 3] << 24; /* Cards with density > 2GiB are sector addressed */ - if (card->ext_csd.sectors > (2u * 1024 * 1024 * 1024) / 512) { - unsigned boot_sectors; - /* size is in 256K chunks, i.e. 512 sectors each */ - boot_sectors = ext_csd[EXT_CSD_BOOT_SIZE_MULTI] * 512; - card->ext_csd.sectors -= boot_sectors; + if (card->ext_csd.sectors > (2u * 1024 * 1024 * 1024) / 512) mmc_card_set_blockaddr(card); - } } switch (ext_csd[EXT_CSD_CARD_TYPE] & EXT_CSD_CARD_TYPE_MASK) { diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h index 1041cf5220f6..dd11ae51fb68 100644 --- a/include/linux/mmc/mmc.h +++ b/include/linux/mmc/mmc.h @@ -266,7 +266,6 @@ struct _mmc_csd { #define EXT_CSD_SEC_ERASE_MULT 230 /* RO */ #define EXT_CSD_SEC_FEATURE_SUPPORT 231 /* RO */ #define EXT_CSD_TRIM_MULT 232 /* RO */ -#define EXT_CSD_BOOT_SIZE_MULTI 226 /* RO */ /* * EXT_CSD field definitions -- 2.34.1